title: Dysphagia and weight loss in a middle-aged man.
mesh_terms: D001905:Botulinum Toxins / Q000627:therapeutic use; D002404:Catheterization; D003680:Deglutition Disorders; D004931:Esophageal Achalasia / Q000209:etiology / Q000601:surgery / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D001905:Botulinum Toxins